Windows: Provide an option to disable search in CWD on `shutil.which`

I would like to search for an executable in the PATH but not from the current working directory (cwd). By default, as documented in shutil.which, it prepends the cwd before PATH, so it's not possible to get the expected executable.

For example, I have a whoami.exe in the cwd but I would like to get the one from the system32 directory; there's no way to do so using shutil.which.

>>> import shutil
>>> shutil.which('whoami')
'.\\whoami.EXE'

I think it makes sense for that to be the default behaviour since that's how it is on Windows. I would like to have a parameter to disable this behaviour in shutil.which.

Thanks!

Comienza con el punto de entrada shutil.which y su documentación, centrándote en la búsqueda específica de Windows en el directorio actual descrita en el issue. Se considera terminado cuando los llamadores pueden excluirse de esa búsqueda y encontrar el ejecutable correspondiente más adelante en PATH, incluido el ejemplo de whoami.exe.